Shielded cable joining structure and joining method

Abstract

In a shield terminal joining structure for joining a shield terminal to a prescribed grounding position along a shielded cable that is formed by an inner core wire made of a conductor, an inner insulation covering that covers the inner core wire, a braid that is provided around the outside periphery of the inner insulation covering, an outer insulation covering that covers the braid, resistive welding is performed while crimping parts of the shield terminal to the outer covering of the shielded cable at the grounding position, so as to melt away part of the outer insulation covering, enabling a weld to be made between the crimping parts and the braid of the shielded cable.

What is claimed is:  
     
       1. A joining structure for a shielded cable, comprising: 
       an inner core wire made of a conductor;  
       an inner insulation covering that covers the inner core wire;  
       a braid that is provided around the outside periphery of the inner insulation covering;  
       an outer insulation covering that covers the braid;  
       a shield terminal that has a crimping part that is crimped over the outer insulation covering, said crimping part displacing the outer insulation covering to provide a substantially continuous circumferential contact between said crimping part and said braid;  
       wherein the crimping part of the shield terminal and the braid are welded in the substantially continuous circumferential contact; and  
       a low melting point substance on an inner surface of said crimping part of the shield terminal, said substance increasing the strength of the weld of the crimping part and the braid.  
     
     
       2. A joining structure for a shielded cable according to claim  1 , wherein the crimping part of the shield terminal is substantially U-shaped, with mutually opposing end parts capable of making mutual contact at an inclination. 
     
     
       3. A joining structure for a shielded cable according to claim  1 , wherein the crimping part of the shield terminal is substantially U-shaped, with mutually opposing end parts capable of making mutual contact along a direction that is parallel to the longitudinal direction of the braid. 
     
     
       4. A joining structure for a shielded cable, comprising: 
       an inner core wire made of a conductor;  
       an inner insulation covering that covers the inner core wire;  
       a braid that is provided around the outside periphery of the inner insulation covering;  
       an outer insulation covering that covers the braid;  
       a shield terminal comprising a pair of crimping parts, said crimping parts being crimped circumferentially over the outer insulation covering, said crimping parts displacing the outer insulation covering to provide a substantially continuous circumferential contact between said crimping parts and said braid;  
       wherein said crimping parts of the shield terminal and the braid are welded in the substantially continuous circumferential contact; and  
       a low melting point substance on an inner surface of said crimping parts of the shield terminal, said substance increasing the strength of the weld of the crimping parts and the braid.  
     
     
       5. A joining structure for a shielded cable according to claim  4 , wherein the crimping parts of the shield terminal form a substantially U-shape, with mutually opposing end parts capable of making mutual contact at an inclination. 
     
     
       6. A joining structure for a shielded cable according to claim  4 , wherein the crimping parts of the shield terminal form a substantially U-shape, with mutually opposing end parts capable of making mutual contact along a direction that is parallel to the longitudinal direction of the braid.